linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am62x-sk-common: Reserve 128MiB of global CMA

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Date:   Mon, 7 Aug 2023 07:07:20 -0500
From:   Nishanth Menon <nm@...com>
To:     Francesco Dolcini <francesco@...cini.it>
CC:     Devarsh Thakkar <devarsht@...com>, <afd@...com>, <vigneshr@...com>,
        <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <a-bhatia1@...com>, <j-luthra@...com>, <praneeth@...com>,
        <j-choudhary@...com>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62x-sk-common: Reserve 128MiB of
 global CMA

On 08:46-20230807, Francesco Dolcini wrote:
> On Sat, Aug 05, 2023 at 02:33:55PM -0500, Nishanth Menon wrote:
> > I am esp concerned since there are platforms based on am62x and just
> > 256MB DDR.
> 
> On that regard, currently you have reserved memory areas just before
> 512MB DDR limit. Any plan to move those?

Nope. Common min configuration we have seen is 512MB (why TI evms use
that definition). There are exceptional cases of 256MB boards, but in
such cases, the board dts should describe it.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D